colder temperatures and lower light levels limit the types of organisms that can live in deep lake waters
There isn't much sunlight that reaches the bottom of a lake.
Because !there is less sunlight down at the bottom!
Plants do grow in lakes, but different kinds that do not require sunlight or oxygen.
Because they do not get the sunlight that they need.
sunlight reaches the bottom
Yes they eat the weeds at the bottom of rivers, ponds and lakes. They will also eat crayfish .
no lakes with plants are rather coooler than without it
There is no bottom of those lakes. If you're looking for the pixies, they are in the caves in the middle of the lakes.
Aquatic plants
Actually there are many countries in the Northern Hemisphere that have fewer lakes than Canada. Canada has lots of lakes. Really a lot.
Water pressure increases with depth. So in a deep lake the bottom of the damn needs to be thicker to accommodate the greater water pressure.
They are plants that live in lakes or pounds.
cattail
yes
I think lakes are marine because lakes can be nasty and drity or clean and drinkable.